Examine source code of Landmark Explorer Quiz

{
  "manifest_version": 2,
  "name": "Landmark Explorer Quiz",
  "version": "1.0",
  "description": "Travel the world through language! This popup quiz gives a Vietnamese clue about a famous landmark, monument, or natural wonder — guess its English name. Perfect for geography lovers and English learners.",
  "icons": {
    "48": "landmark_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Landmark Explorer Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{86c5235a-f6a8-41a8-93b7-530ff1ce8b06}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}